Philosophical Disagreement and Skepticism Eric Thomas Wilcox University of Missouri-St
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University of Missouri, St. Louis IRL @ UMSL Theses Graduate Works 4-19-2013 Philosophical Disagreement and Skepticism Eric Thomas Wilcox University of Missouri-St. Louis, [email protected] Follow this and additional works at: http://irl.umsl.edu/thesis Recommended Citation Wilcox, Eric Thomas, "Philosophical Disagreement and Skepticism" (2013). Theses. 239. http://irl.umsl.edu/thesis/239 This Thesis is brought to you for free and open access by the Graduate Works at IRL @ UMSL. It has been accepted for inclusion in Theses by an authorized administrator of IRL @ UMSL. For more information, please contact [email protected]. Philosophical Disagreement and Skepticism Eric T. Wilcox B.A., Philosophy, University of Missouri – Kansas City, 2011 A Thesis submitted to The Graduate School at the University of Missouri – St. Louis in partial fulfillment of the requirements for the degree Masters of Arts in Philosophy May 2013 Advisory Committee Eric Wiland Chairperson Berit Brogaard John Brunero 1 Abstract: Disagreement is ubiquitous in philosophy. Although this disagreement is sometimes easily explained, other times we find more difficult disagreement arising between epistemic peers. There are a few different ways we can react to peer disagreement in philosophy. Following Hilary Kornblith, I argue that we should suspend judgment in the face of such disagreement. Although I think this is the most rational choice, it eventually leads to an uncomfortable skepticism towards philosophical methods. I conclude that when we examine the reliability of philosophy based on its usual defenses, we find that philosophy is indeed unreliable. “Metaphilosophy is the investigation of the nature of philosophy, with the central aim of arriving at a satisfactory explanation of the absence of uncontested philosophical claims and arguments” – Morris Lazerowitz There are many kinds of disagreement, some which are less problematic than others. Kevin may disagree with Heather about whether You’ve Got Mail is a good movie. A young math student may disagree with his tutor about whether 7 + 5 = 12. Both of these cases are relatively unproblematic. In the first case, one can say that whether you believe You’ve Got Mail is a good movie is strictly a matter of taste. There is no deciding factor one way or the other. Additionally, not much hinges on your preference of that particular (and in my opinion, rather terrible) Tom Hanks movie. We might call this disagreement about taste1. 1 Although there is an extensive literature on disagreement in aesthetics, I’m not trying to address that literature in this example. Also, disagreement about taste could be construed as faulted disagreement (see below) if, for instance, Kevin had not seen the movie or if Heather was a well-known movie critic. 2 The case with the math student is a type of faulted disagreement. Faulted disagreement arises when a disparity of information or intelligence is found between the conflicting parties. For example, the young math student might disagree with his tutor about whether 7 + 5 = 12. He might think that 7 + 5 = 13. But the fact that he disagrees with his tutor is no reason for us, who are mathematically competent, to doubt whether 7 + 5 = 12. The student is young and ill-informed, and thus the disagreement arises from the fact that the student lacks the proper information or intelligence. Many cases of disagreement would disappear if both parties came to have the same level of information. In the above example, if the student came to know all of the relevant facts about addition and quantities, he would thereby agree with his tutor that 7 + 5 = 12. Another example is if someone believed that the capital of Australia is Sydney. Those who have the relevant information know that the Australia’s capital is Canberra. Simply consulting a map would alleviate disagreement in this case. The above cases of disagreement are relatively mundane. There is a more interesting type of disagreement called peer disagreement. Peer disagreement is disagreement that arises between two epistemic peers: understanding, knowledge, and expertise are equally distributed among both parties. But epistemic equality is not enough for the kind of disagreement I want to examine, for both parties might be equally ill- informed; they may both be equally and incredibly stupid about a certain topic. What we want are equally informed and well-informed peers. Although this is an additional Expertise is commonly thought of as a factor in deciding whether the disagreement is faulted or faultless. However in this example, Kevin and Heather are normal movie-goers. 3 qualification, it is not an outrageous one. In fact, we can find such disagreement within philosophy. Here is the layout of the paper. In the next section, I’ll examine peer disagreement in philosophy and some qualities that I think differentiate disagreement in philosophy from disagreement in other fields. From there I will address different reactions towards this disagreement and why I think peer disagreement in philosophy should be met with suspension of belief. However, given that disagreement is almost everywhere in philosophy, philosophy as an epistemic activity seems to be in jeopardy. I will conclude the paper with some common defenses philosophy might have to justify itself as a reliable method. Ultimately, I will put forth the main thesis that philosophy lacks the proper epistemic justification needed in order to be a reliable method towards truth or something reasonably truth-like. 1. Peer disagreement in philosophy Those outside of professional philosophy might find it surprising that there is widespread disagreement in philosophy. After all, philosophers are usually smart, well- informed, and charitable people, albeit a little strange sometimes. However, anyone who has had training in philosophy or has attended a philosophy conference will know that disagreement is ubiquitous2. Philosophers disagree on all types of things. And recently, some philosophers have been worried about how serious we should take this 2 Although philosophers disagree on many things, I would be surprised to find someone who disagrees that there is disagreement in the field of philosophy. The fact of disagreement, it seems, is the one thing on which we all can agree. However, and not surprisingly, how serious we should take this disagreement and whether this disagreement is rational are contested. 4 disagreement. Unsurprisingly, philosophers have disagreed on how we should react to disagreement. Before I get into the reactions to disagreement, there are a few qualities of philosophical disagreement that distinguish it from disagreement in other fields. First, it is persistent. Philosophy has been around for over 2500 years, and we are still grappling with the same questions Plato and Aristotle did in ancient Greece. Second, it is pervasive. We find disagreement not only across fields in philosophy (interdepartmental), but also within very specialized sub-fields (intradepartmental). There seems to be nothing on which philosophers can agree. Last, it is often fundamental. Philosophers disagree not only on the answers to philosophical questions, but also on the fundamentals of philosophy like what constitutes a philosophical question, how one should do philosophy, what philosophy is for, and even what philosophy is3. It is for these reasons that disagreement in philosophy is particularly problematic (Plant 570). Now, it might be just that the work to be done in philosophy is on those areas where there is disagreement. No one need to write about those matters that are settled, such as whether certain obvious logical fallacies are indeed fallacies, or on other obvious truths that no one would deny. One might argue that we do have some agreement – that’s what makes argumentation possible – but we focus as a discipline on the work that needs to be done. And that’s why, at conferences and in philosophy generally, it appears that disagreement is the norm.4 3 In this paper, I will not address the question of what “philosophy” is. For now, my arguments will only apply to analytic philosophy. 4 Thanks to John Brunero for this point. 5 I think this is an overly optimistic view of agreement in philosophy. It seems that no truth is sacred in philosophy; what one philosopher holds as an obvious truth may be held by another philosopher as an absurdity. This may be in part because it is one of the jobs of philosophy to raise doubt on “obvious truths that no one would deny” like, e.g., whether there is a material world. Even the basic method of deduction, a primary tool of philosophy, has been brought into question5. This is why I characterize disagreement in philosophy as pervasive and fundamental. Getting back to disagreement, not all disagreement in philosophy can be construed as peer disagreement. Sometimes conflicts do arise out of misunderstanding or lack of information. However, it cannot be denied that we do find in philosophy the kind of disagreement between peers, both of whom have incredible knowledge and intelligence. A paradigm case of peer disagreement in philosophy is the disagreement found between two well-respected philosophers, Peter van Inwagen and David Lewis. Van Inwagen writes: How can I believe (as I do) that free will is incompatible with determinism or that unrealized possibilities are not physical objects or that human beings are not four-dimensional things extended in time as well as in space, when David Lewis--a philosopher of truly formidable intelligence and insight and ability--rejects these things I believe and is already aware of and understands perfectly every argument that I could produce in their defense? (273) I think this can reasonably be seen as a case of peer disagreement6. We see van Inwagen puzzled by this apparent case of peer disagreement of which he find himself a part. He 5 See Carroll, Lewis. 1895. What the tortoise said to Achilles.